Racket ball holder



FIG. 1 is a perspective view of a racket ball holder, showing my new design;

FIG. 2 is a side-elevational view of the side not seen in FIG. 1;

FIG. 3 is a rear-elevational view thereof; and

FIG. 4 is a bottom-plan view thereof. 

The ornamental design for a racket ball holder, as shown and described. 